The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 1998
Filed:
Dec. 21, 1995
Kabushiki Kaisha Kobe Seiko Sho, Hyogo, JP;
Kao Corporation, Tokyo, JP;
Abstract
The present invention relates to a lubricant composition for press-forming an aluminum or aluminum alloy sheet at low temperatures. The composition contains a component (a): 45 to 90% by weight of one or more hydrocarbons selected from the group consisting of mineral oils, synthetic naphthenes, polybutenes, and poly(mono).alpha.-olefins, and component (b): 10 to 45% by weight of one or more C10-C24 linear or branched fatty alcohols. The ester value of the composition is not more than 70, and the kinematic viscosity is less than 20 cSt at 40.degree. C. When this composition is used in forming aluminum or aluminum alloy sheets, enhanced formability can be obtained, and shapes which could not obtained conventionally can be formed.